SOLR-17359: Move Zk Arg parsing into Java Code

[epugh]

https://issues.apache.org/jira/browse/SOLR-17359

Description

Migrate arg parsing for ZK commands into Java code

Solution

Had to add a ZkToolHelp to handle some of the global help output.

Tests

Please describe the tests you've developed or run to confirm this patch implements the feature or solves the problem.

Checklist

Please review the following and check all that apply:

• I have reviewed the guidelines for How to Contribute and my code conforms to the standards described there to the best of my ability.
• I have created a Jira issue and added the issue ID to my pull request title.
• I have given Solr maintainers access to contribute to my PR branch. (optional but recommended)
• I have developed this patch against the main branch.
• I have run ./gradlew check.
• I have added tests for my changes.
• I have added documentation for the Reference Guide

[epugh]

Okay, I changed the short cut "-s" to mean Solr URL instead of "shards". however, in 9x "-s" means shards.. I am thinking that maybe I change allt he tests to use "--shards", and when I backport to 9x, I don't make "-s" mean solr url, but leave it as shards parameter?

[epugh]

FYI, for folks tracking this, @rahulgoswami has started testing this PR on Windows! Thanks @rahulgoswami ... He has validated start, stop and restart and then will start digging into the ZK commands.